TPS62740 Series
2.2V-5.5V input, ultra-low-power 300mA step-down buck DCDC converter with 360nA Iq
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Applications | Mounting Type | Voltage - Input▲▼ | Voltage - Input▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Number of Outputs▲▼ | Supplier Device Package | Voltage - Output▲▼ | Voltage - Output▲▼ | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS62740DSSTDCS-Control™ Converter, Bluetooth (BLT) Voltage Regulator IC 1 Output 12-WSON (2x3) | Bluetooth (BLT), Converter | Surface Mount | 5.5 V | 2.200000047683716 V | -40 °C | 85 °C | 1 ul | 12-WSON (2x3) | 1.7999999523162842 V | 3.299999952316284 V | 12-WFDFN Exposed Pad |
Key Features
• Input Voltage Range VINfrom 2.2V to 5.5Typ. 360nA Quiescent CurrentUp to 90% Efficiency at 10µA Output CurrentUp to 300mA / 400mA Output Current (TPS62740/TPS62742)RF Friendly DCS-Control™Up to 2 MHz Switching FrequencyLow Output Ripple Voltage16 Selectable Output Voltages in 100mV Steps between1.8V to 3.3VAutomatic Transition to No Ripple 100% ModeSlew Rate Controlled Load SwitchDischarge Function on VOUT / LOADPower Good OutputOptimized for Operation with a Tiny 2.2µH Inductorand 10µF COUTTotal Solution Size <31mm2Small 2 × 3 mm2WSON PackageInput Voltage Range VINfrom 2.2V to 5.5Typ. 360nA Quiescent CurrentUp to 90% Efficiency at 10µA Output CurrentUp to 300mA / 400mA Output Current (TPS62740/TPS62742)RF Friendly DCS-Control™Up to 2 MHz Switching FrequencyLow Output Ripple Voltage16 Selectable Output Voltages in 100mV Steps between1.8V to 3.3VAutomatic Transition to No Ripple 100% ModeSlew Rate Controlled Load SwitchDischarge Function on VOUT / LOADPower Good OutputOptimized for Operation with a Tiny 2.2µH Inductorand 10µF COUTTotal Solution Size <31mm2Small 2 × 3 mm2WSON Package
Description
AI
The TPS6274x is industry’s first step down converter featuring typ. 360nA quiescent current and operating with a tiny 2.2µH inductor and 10µF output capacitor. This new DCS-Control™ based device extends the light load efficiency range below 10µA load currents. TPS62740 supports output currents up to 300mA, TPS62742 up to 400mA. The device operates from rechargeable Li-Ion batteries, Li-primary battery chemistries such as Li-SOCl2, Li-MnO2 and two or three cell alkaline batteries. The input voltage range up to 5.5V allows also operation from a USB port and thin-film solar modules. The output voltage is user selectable by four VSEL pins within a range from 1.8V to 3.3V in 100mV steps. TPS6274x features low output ripple voltage and low noise with a small output capacitor. Once the battery voltage comes close to the output voltage (close to 100% duty cycle) the device enters no ripple 100% mode operation to prevent an increase of output ripple voltage. The device then stops switching and the output is connected to the input voltage. The integrated slew rate controlled load switch provides typ. 0.6Ω on-resistance and can distribute the selected output voltage to a temporarily used sub-system. The TPS6274x is available in a small 12 pin 2 × 3mm2WSON package and supports a total solutions size of 31mm2.
The TPS6274x is industry’s first step down converter featuring typ. 360nA quiescent current and operating with a tiny 2.2µH inductor and 10µF output capacitor. This new DCS-Control™ based device extends the light load efficiency range below 10µA load currents. TPS62740 supports output currents up to 300mA, TPS62742 up to 400mA. The device operates from rechargeable Li-Ion batteries, Li-primary battery chemistries such as Li-SOCl2, Li-MnO2 and two or three cell alkaline batteries. The input voltage range up to 5.5V allows also operation from a USB port and thin-film solar modules. The output voltage is user selectable by four VSEL pins within a range from 1.8V to 3.3V in 100mV steps. TPS6274x features low output ripple voltage and low noise with a small output capacitor. Once the battery voltage comes close to the output voltage (close to 100% duty cycle) the device enters no ripple 100% mode operation to prevent an increase of output ripple voltage. The device then stops switching and the output is connected to the input voltage. The integrated slew rate controlled load switch provides typ. 0.6Ω on-resistance and can distribute the selected output voltage to a temporarily used sub-system. The TPS6274x is available in a small 12 pin 2 × 3mm2WSON package and supports a total solutions size of 31mm2.